when i bought the car, and since then, at the moment of turning the key the spoiler goes up and does not go down unless i press the switch, but as soon as i release it, goes up.
the only way to see it down is lowering it with the switch and turning the key left and remove it. but as soon as i turn it right it goes up.
checked the rcm and the relays are perfect.
battery seems to be in good shape. everything else works fine.
has any1 faced this?

thanks

 

battery battery battery battery .......

 

thanks.
now, how do i check it?
or...link?
must be a way to get at least an idea of its condition.
or what readings should i expect?

 

found this: https://www.google.ca/search?hl=en&e...aq2AT8Q4dUDCAs

perhaps is this that you are suggesting? test the battery under load?

 

You can't test it, not for it's filtering ability or voltage stability, which is what this discussion is about.

Do not test it, replace it.
I responded to your PM, if you do not want to replace the battery, answer those questions I asked and MAYBE we can find a non-battery cause.

If it were me, that car would be getting a new battery today, then I'd be doing one of the two mods in THIS thread:
https://www.crossfireforum.org/forum...le-engine.html

That is the advice you are going to get here - cause so many of us have been thru this before. This is all new to you, but not to those of us who have been around these cars for ten years now.

 

do you mean that because the spoiler is doing what is doing it means that i have to replace the battery?

ok. 1st this: you said: "Our first consideration is this: What other symptoms does the car have? Is there ANYTHING else going on that you have noticed - does it idle rough? Does it not start as easy as before? Any dash warning lights on? Does the car have a LOT of miles (over 100,000?)
The big questions:
How old is the battery?
Is the undercarriage all rusty and corroded from being in a salty environment?
Do the battery cable connections look clean, pretty, perfect and are they TIGHT? "

the car does not show any other symptoms. runs smooth, starts easy; no warning lights (except the tire),
dont know how old the batt is; the car has about 65,000 miles, very clean, no rust, kept indoors in a clean environment. connections, everything is clean; connections are tight.

 

about this: " if you do not want to replace the battery, answer those questions I asked and MAYBE we can find a non-battery cause. "
its not that i dont want to replace it, but this is something that may have the answer, so why not tell?
this: The wing going up is either a brake-controller/stability control issue or a bad battery/battery ground cable/etc.

 

I would keep the battery and get rid of the car and let someone else figure out the problem.

 

lets go back to post 1:
"when i bought the car, and since then, at the moment of turning the key the spoiler goes up and does not go down unless i press the switch, but as soon as i release it, goes up.
the only way to see it down is lowering it with the switch and turning the key left and remove it. but as soon as i turn it right it goes up.
checked the rcm and the relays are perfect.
battery seems to be in good shape. everything else works fine.
has any1 faced this?
thanks"
also, if any1 knows the solution, please bring it in.
and please explain in detail why this happens.
please, just post if you can do so.

 

How did you check the relays?
Proper operation is checked by turning the key to the ON position and ensuring that 2 of the middle relays stay engaged.
If only 1, that's your problem.

 

thank you for your advice. will try and tell.

 

1 more thing: there are 5 relays. which 2 are you talking about?
thanks.

 

 

Turn key on, middle three close. #4 will open in about 4 seconds if you dont' start the car. The other two MUST stay closed.

 

1) It is possible, that the previous owner has hacked the wiring in some way as to have this all jacked up. If that is the case, well, you have three things to try:
A) Take it to a shop or dealer and pay $90 an hour for someone to guess or tear into the car and TRY. Expect this to be expensive and fruitless.
B) Get the service manual out and start reading; learn to use a DVM and learn about the difference between voltage, current and resistance and try to get to the bottom of this yourself.
C) Live with it as is.

2) and explain in detail why this happens.
Wow, Phil, poor form there. You are not coming across in a very good light.

Consider: None of us are here being paid to help anyone.
Why do you think ANYONE here has the time to answer in detail? No one here engineered the car, no one here knows what the previous owner did to it. No one here knows ANYTHING other than the few words you have typed. We see no photos, the battery condition, wiring, etc. are described by you; but all we have here is your opinion of what conditoin the car is in. I once went to look at a "showroom condition" car that the dash was looking like hell due to UV. Words really don't mean much.

Replace the battery and see what you get. If that does not fix it, and the car has always done this since you bought it, I'd say you may have bought one of those cars that some asshat tried to modify how the wing works. ANYONE who has tried that has failed, the operation of the wing is hard-coded into the routines in the BCM. If replacing the battery does not do it, I'd say this is something you must live with.

But you are wasting time not replacing the battery. That is the first thing to do in such cases. Look at it this way: Cost of a battery is the same as cost of about 1 1/2 hours of labor - no big deal.

 

thank you very much for the detailed comment.
just a clarification: am not telling any1 to explain-or else. am just begging to explain what they know. just would like to learn as much as any1 knows about the input they may bring.

 

thank you very much. now i know.

 

tested relays as advised, all perform fine.

 

also tested the battery, and is doing well.
followed advice from here: https://westernfinancialgroup.ca/How...battery-health

 

effective way? You have yet to load test the battery. Keep chasing your tail.